Jail-door-locking mechanism.



J. ALLBNSON.

JAIL Doon LOCKING MBGHAMSM.

APPLICATIOHTILBD 103.29, 1911,

1,043,748. y Patented Nov. 5, 19121 v4 sums-SHEET 1.

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www #www J. ALLENSON.

JAIL DOOR LOCKING MBGHANISM.

APPLICATION FILED MAB. 29, 1911.

4 SHEETS-SHEET 2.

mm n: md n Patented Nov. 5, 1912.

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dw 2f J. ALLBNSON.

- JAIL DooR LOCKING MEGHANISM.

' APPLIGATIO; rILBD 11.29, 1911..` 1,0435748.

v Patented Nov. 5,1912.

4 SHEETS-SHEET 3.

` Wwf/zg.

Jakmlef J. ALLBNSON.

`I'AIL DOOR LOCKING MBCHANISM.

APPLIcA'rIoN FILED 11,111.29, 1911.

1,043,748.v v `111161119111\10v.5,1912.

4 SHEETS-SHEET 4. O5

it or reconnect it with the gang control.

UNITED STATES APATENT OFFICE. y

JOHN ALLENsoNfor sT. PAUL, MINNESOTA, ASSIGNoR To sT. PAUL IioUNDRY CoM- PANY, or sT. PAUL, MINNEsoTA, A CORPORATION 0F MINNESOTA.

J' AIL-DOOR-LOCKING MECHANISM.

Application filed March 29, 1911. Serial No. 617,621.

To all whom it may concern:

Be it known that l, JOHN ALLnNsoN, a citizen of the United States, residing at St.

Paul, in the county of Ramsey and State of Minnesota, have invented anew and useful Improvement in J ail-Door-Locking Mechanism, of which the followingis a specilication.

My invention relates to improvements in jail door locking mechanism and has as `its object the design of a simple secure mechanism adapted to meet the needs of jailers in charge of large prison institutions.

The device which l have designed is particularly adapted to perform the following combination ot functions z-a gang control operating under any condition of the individual -doors to lock and unlock the doors connected tothe gang control an individual door key-control operating -in certain positions of the gang control to unlock individual doors, and a separate individual door key-deadlock operating in certain positions of the gang control to separate an individual door from the gang control and deadlocl ratchet controlof open and closing doors is connected with the gang control which under normal conditions prevents an open door from being closed and apa-rtlyV closed door ""jfrom beingopened without the use of a master key.

In the drawings with which I have illustratedin my invention and which form part of the specification, Figure 1 is an elevation4 of two doors in a single tier of cells, parts of the cell frontsr being broken away to show the locking mechanism in the unlocked position of gang control; Fig. 21s a broken` view of the parts as' shown'in Fig. 1 showing enlarged details; Fig. 3 shows the gang control in its intermediate or normal position and the operating parts of the lock mechanisms; Fig. 4 shows the gang control in ther gang locked position and a door individn'ally deadlocked; Fig. 5 illustrates the actionof the ratchet control; Fig. 6 shows the action of the gang lever; Fig. 7 is a detailed view of the gang locking bar; Fi s. 8, 9, and 10 show details of the gang mec anism in different positions of the gang control; Fg. 11 is a section onthe line X-X,

Specification of Letters Patent.

Patented Nov. 5, 1912.

front A fitted with a sliding door B having I" notched engaging members on its front. A gang control C operates in connection with a plurality of such doors arranged in horizontal series.v On the front A of the cell is a lock D containing the mechanisms ofthe individual door lock E and the individual deadlock F. At the-top of the door B is situated the ratchet door control G coperating with the gang control C and the individual door lock E.

The cell front A is formed of metal with a grated portion 2 and a closed panel 3, and a doorway 4 between the two. Across the top of the cell front A extends a mechanism panel 5, which contains parts of the gang and ratchet control mechanisms. The door B is supported on wheels 6 journaled at its top, which run on a guide track 8 in the bottom of the mechanism panel 5, the doorway 4 and grated panel 2 being so proportioned l",

that/the door B can slide back, opening up the entire width of the doorway.

On the jamb bar 9 of the door B near its top, is a forwardly extending lug 10 having heightof the door is a second lug 15 similar in outline to the first and having a notch 16 similar to the notch 11 in the lug 10. In addition it has a notch 17 near its front end` adapte-d to engage the latch member 18 of the door lock E. Near the, bottom of the door B on the j amb bar 9 is a third lug 2O having a notch 21 similar to notches 11 and 16. This lug has a short abutment 2 2 in front of the notch. z

The door jamb 23 connected with the closed panel 3 of the cell front A is formed with apertures 24, 25,and 26 fitted for the reception of the. respective lugs 10, 15, and' 20 in the closing of the door B, the positioning door B is in its tightly closed position.

The locking bar 30 of the gang control C lies I within the closed panel 3 and rests against the jamb piece 23 of the doorway, be-l a washer 34 on the inside of the lock bar,

and is secured by lock nuts 35. A loose collar 36 is placed on the bolt 31- to revolve easily within the slot of the lock bar. Two slots 37 and 38 are provided in the lock bar 30 t-o receive the lugs 10 and 15, and the slots 33 on the bolts are long enough to allow the upper sides of the notches 37 and 38 to engage in the notches 11 and 16 of the lugs 10 and 15 by the vertical movement of the bar, the end 39 of the bar 30 engaging the notch 21 of the bottom lug 20 on the door B.

Through the mechanism panels 5 of the series of cell doors, extends the gang shaft 40 by means of which the gang cont-rol C operates. This shaft extends to the end of the seriesof cells, where the gang lever box 43 is situated, and terminates in a pinion This pinion 44 meshes with a rack 45 which moves vertically in grooved guides 46 in the lever box 43 and is connected by a link 48 to a hand lever 49 which is plvoted at 50 1n the -lever box. The hand lever 49 has a latch 52 operating in three notches 53, 54, and 55 on a rack 56 mounted in the lever box, and the movement of the lever 49 from the lowest notch 55 to the highest notch 53 operates the shaft 40 through its entire rotative movement, constituting in my device as shown, less than one complete revolution of the shaft. y

The shaft 40 extends above all of the doors in the series of cells which -it controls and has bearing in castings 58 and 59 which are secured to the partition walls 60 in the -v mechanism panel by bolts 61. At each doorway the shaft 40 carries a cam collar 65 have ing av single cam lug 66, the collar 65 being fixed on the shaft 40 by a set screw 67. Surrounding the cam 66 is a strap-like cam-follower yoke 68 formed in a single piece of cast metal. a The form of the follower yoke 68 is a quadrilateral of equal sides which have a slight convex curvature. To the middle of the lower side is att-ached a lug 69 in which is threaded a rod 70 connecting to the top of t-he gang locking bar 30. The top of the gang looking bar 30 is arranged with a recess 72 on its door jamb side in which rests a washer .73. On the opposite side of the bar 30 is a block 74 having a stud 75 passing through the bar and washer and headed on the jamb side within the recess 72. The upsett-ing holds the block 74 firmly but rotatably on the bar 30. The block is apertured to receive the end of the rod 70 which is longitudinally adjustabletherein by means of the set nuts 76. A y

`The arrangementv of parts is such that when the gang shaft 40 is rotated to a posisuch as the individual door lock E.

tion in which the cam lug 66 extends vertically downward, the yoke 68 and bar 30 are held in their lowest position and the engaging ,slots 37, and 38 and the end 39 of the bar are in engagement with the locking lugs 10, 1.5 and 20 of the door B. This position of the gang shaft 40 is secured by the positioning of the gang lever 49 in the lowest notch 55 of the rack 56, and may be called the locked position of the gang control C illust-rated in Figs. 4 and 8. The horizontal lposition of the cam lug- 66 as shown in Fig.

9 is secured by the gang lever L45 in the middle notch 5.4 of the rack 36 and may be called the intermediate position of the gang control C illustrated in Figs. 3, 5, and 9. This position is reached from the locked position of the gang control C without movement of the lock bar 30 and the lock bar is free to be moved upward by other means Further movement of the cam 66 into the position shown in Figs. l, 2, and 10, is secured by placingthe gang lever 9 in the upper notch 55 of the'rack which may be called the locked openvposition of the gang control C. In this position of the gang shaft 4t), the cam lug 66 is directed upward and carries with it the follower yoke 68, and the lock bar 30 is moved to a position in which the engaging points of the bar are clear of the notches 1n the engaging lugs of the door.

In the closed panel 3 of each cell front A- and protected thereby, is a lock I) having easing of ordinary design adjacent to the door jamb 23. Within the casing 80 is the latch 18 of ordinary construction having an abutment 81 adapted to engage the notch 17 in the lug 15 of the door B when the door is in itsclosed position. This latch 18 is actuated by the individual door lock E and is formed with a beveled front side 82 which is adapted to coperate with the beveled corner of the lug 15 to raise the latch 18 when the door is .being closed. When the latch 18 and lock bar 30 act together, the beveled corner of the lug 15 first strikes the edge of the slot 38 and raises the bar and as the lug 10 is of the same length, it holds the bar` up while the door closes and prevents the bar from dropping into the notch 17. Continuous with the latch`18 is a body portion 83 from which rises a rod 84 freely slidable in an aperture in the casing 80. W'ithin the casing and between the casing and the body 83 of the latch is a coiled compression spring 85 which tends to hold the latch 18 depressed and in a position to engage the notch 17 in the lug 15. The latch 18 has a guide arm 86 extending downward past the lug andA On the guide arm 86 is a lug 90 having a horizontal lower surface coperating with the dog 91 on the ward plate of the individual door lock E.

The locking mechanism of the door lock E is of ordinary construction having a keypost 92 fitted for a suitable key, and a plurality of wards 93 pivoted on a stationar f ivot 94 and engaging a ward post 95. ug 96 on the key post 92 is fitted to operate a ward plate 97 which carries the dog 91. The parts are so formed that the operation of the key post 92 moves the dog 91 vertically, engaging the lug 90 and at thesame time permits the free upward movement of the latch 18 when moved by the lug 15 of a closing door. The deadlock F is fitted with a similar arrangement of key post 98 having a lug 99 thereon, wards 100, ward post 101, and ward plate 102, the ward plate being adapted to be operated horizontally by the action of a suitable key in the key post 98.

The ward plate 102 carries a post 105 adapted to engage a guide 106 having a vertical guide slot 107. This ide is connected to a horizontally operating bolt 108 which slides in an aperture in the body 83 of the latch and in the normal position of the' deadlocking mechanism, engages the locking bar 30 of the gang control C in an aperture 109v in the bar about which the bar is thickened to aiford a wider bearing on the bolt. A stop 110 is formed integral with the part of the casing 80 which is broken away in t-he drawings and isshown as a broken surface behind which the ward plate 102 slides. The post 105 upon the ward plate 102 is so positioned that horizontal movement of the ward plate is possible only when the latch 18 is in its lowest posit-ion. The ward plate can then be moved by the use of a key in the ward post 98 to the position shown in Fig. 4 where the guide 106 is directly below the stop 110, etlectually preventing the upward movement of the guide 106 or bolt 108. The horizontal movement of the guide and bolt retracts the end of the bolt from the gang lock bar 30 but retains it in the body 83 o `the latch, controlling the movement of the latch 18. By this means the individual door latch 18 is separated from the gang control C and the latch is deadlocked from any upward movement without the release of the deadlocking mechanism F. With the deadlock in its normal position shown in Fig. .3, any upward movement of the latch 18'due to the closing of the door, operation of the individual door lock E or gang control C, carries the guide 106 upward, with the post 105 moving in the vertical slot 107 in the guide 106 and the guidey lies beside the stop 110 and againstvit, which prevents the action of the deadlock mechanismwhile the latch is in any but its lowest position.

The opening of the door is controlled by a Vratchet mechanism G at the top of the door. l'

A. ratchet bar 111 is connected to the forward wheel of the door and extends forward through aguide slot 112 in the casting 58, movin forward and back with thedoor B in closing and o ening the same. The castlng 58 is forme with a lug 118 which acts as a guide for lthe yoke 68 in its movements.

I-n the closed position of the door the ex tremity 113 of the ratchet bar 111 extends through a guide slot- 114 in the casting 59 bolted to the division wall of the cell. :Extending from the sides of the guide slot 114 toward the door B are two-diverging guide lugs 115 which are .adapted to direct the ratchet bar 111 into the guide slot 114 in the casting 59. On the top edge of the ratchet bar 11 from the casting 58 to the end of the bar 113 in the closed position of the door, are ratchet teeth 116l having points directed toward the door and sloping front faces 117.

A pawl 120 is pivoted in the casting 58 on a pin 121 and has an engaging extremity adapted to' come into engagement with the teeth of the ratchet preventing further opening movement of the door. Cn the side of the pawl 120 is a lug 122. A dog 123 fixed on the rod by a set screw 124 rises and falls with the follower yoke 68 when operated by the cam 66 on the gang shaft 40 and comes into contact with the lug 122 on the pawl 120 to raise it when the cam 66 begins to raise the yoke and locking bar.- lhe pawl 120 is thus in position to engage the ratchet teeth 116 at all times when the gang control C is not in a locked open position. When the door is in its wide open position the end 113 of the ratchet bar 1.11 is adjacent to the pawl 120 and with the gang'control C in its intermediate or locked positions, the pawl engages the end of the bar and can be raised out of engagement by movement of the yoke 68 either through the door lock E or the gang control C.

In operating my device, the gang lever being in the notch 55 and the individual door latches 18 being connect-ed to the gang control C, the gang control C then being in the position shown in Fig. 4 and the deadlock in the position shown in` Fig. 3, throwing the gang lever 49 into its intermediate position shown in Fig. 3 turns the cam 66 in the yoke 68 but does not change the position of the locking parts. The follower yoke is then free to be raised by thc individual door lock to the dotted position 125 shown in Fig. 9, raising the gang locking bar 30 and the pawl 120 out of engagement with the locking mechanism of the door B. A The door may then be opened freely and closed without any' hindrance; when it is once opened the door lock E maybe once more released and the pawl 120 dropped into engagement with the end 113 of the ratchet bar, .holding the door in its open position. To close the door,

-t-act with the ratchet teeth and preventing the reopening of the door at an)7 position Iwithout the operation of the door lock. The' door may be entirely closed, snapping the Y latch 18 into the notch 17. In this manner i io , locked down positions.

any one of the series of doors B under control of the gang lever may be opened or closed by a master key in the door lock E.

lVith the gang control' in the position shown in Fig. 9, the deadlock F may be operated by a master key, withdrawing the bolt 108 from the gang bar 30 and disconnecting the door latch 18 from the gang control C. This action places the guide 10G under the stop 110 and prevents the opening of the latch 18 by the door lock E. Subsequent operation of the gang lever 49 does not affect the condition of the deadlock con-i trol and the door B cannot be opened by any meanswithout the operation of the deadlocking mechanism which at once reconnects the door latch 18 with the gang control C. This operation of the deadlock mechanism F canbe accomplished only when the aperture 109 is in position to receive the bolt 108 which occurs when the gang control C is in its locked or intermediate positions.

By throwing the gang lever 49 into the upper notch the gang shaft 4:0 is rotated, turning the cam 66 upward raising the looking bar 30 and holding it in raised position until the gang lever` 19 is released from the notch `While the gang lever is in the upper notch 53 all doors that were'not dead'- locked previous to the lever movement are unlocked with lock-bars and ratchet p awls in raised position. The deadlock cannot be operated and all doors connected with the gang control are free to be opened or closed. From this unlocked position the gang lever may be thrown to either the intermediate or In vthe latter, the

operation of the deadlock is possible by the withdrawing of the l'bolt 108 from the gang bar 30. The door lock cannot. however, be

operated so long as the latch and gang con- -trol are connected and the door is locked ,i by the bar 30 engaging the door lugs and by -.the latch in the notch 17 and cannot be can be carried out by other means and applied to uses other than those above set forth within the scope of the following claims.

Having described my invention, what I claim as new and desire to protect by Letters Patent is 1. In a locking mechanism for a door having an engaging member, a latch and a locking bar adapted to engage said member, lock means for connecting said latch and bar, whereby both of said elements may be operated through either to lock and unlock said door, a cam separably connected with said locking bar to lock and unlock said door, and means for operating said bar and latch when said caiii is separated from said bar.

2. In a locking mechanism for a door having an engagirg member, a latch adapted to engage'said member, a locking bar adapted,

to engage said member, a cam yoke connected operatively, with said bar, having an upper and a lower point of contact spaced apart. and a cam having an operating face narrower than the space between said contact points and adapted to operatively engage one of said contact points to engage said bar with said engaging member to lock said door and the other of said points to disengage said bar from said engaging member, and means for separably connecting said latch and locking bar whereby said latch may be operated by said cam.

3. In a ratchet control for a jail door having locking means connected therewith, a locking bar connected with said locking means to lock and unlock said door, a ratchet bar attached to said door, a pawl cooperating with said ratchet to stop the opening movement of said door in any position thereof, and a dog mounted on said lock -means and adapted to disengage said pawl from said ratchet in the unlocked position of said locking means.

4. In a. ratchet control for a jail door having gang locking means connected therewith, a locking bar connected with said gang locking means to lock and unlock said door, a ratchet bar attached to said door, a pawl cooperating with said ratchet to stop the opening movement of said door in any position thereof, an a dog mounted on said gang lock means and adapted to disengage said pawl from said ratchet in the unlocked position of said locking means.

5. In a gang lock for a plurality of jail doors, each of said doors having an engaging member, a latch anda locking bar each adapted to engage said member, lock means for connecting said latch and bar whereby both of said elements may be operated through either to lock and unlock said door, a cam s eparably connected with said locking bar to lock and unlock said door, separate means for operating said bar and latch when said cam is separated from said bar, and gang means for operating said cams on said doors.

6. In a ,gang locking mechanism for a face narrower than the space between sai plurality of jail doors, each ofsaid doors having an engaging member,la latch adapted to engage said member, a locking bar adapted to engage said member, a cam yoke connected operatively with said bar, having an upper and a lower point of contact spaced apart and a cam having anoperating contact points and adapted tov operatively engage one of said contact points to move said bar intoA engagement with said engaging member to lock said .door andfto engage the other of said points to disengage said bar from said engaging member, means for separably connecting said latch and locking bar whereby said latch may be operated by said cam, ,and gang means for operating said cam.

7. In a gang locking mechanism' for a series of doors in a cell front, slidably mounted to close said front, each of said doors having a locking member on its jamb piece, a

y locking bar slidably mounted in said cell front to coperate with said locking member to lock each ofsaid doors, alatch for each" door on said cell front engaging said lockin member and detachably connected with sai bar, a cam shaft in said cell front, a cam on said shaft in connection with each of said doors, a cam yoke for each door operatively connectedwith said locking bar to operate the same, said yoke being formed with upper and lower cam faces separated by a lost motion space in which the cam does not'coperate with the, yoke, means for operating said cam shaft and separate means for operating the latches whereby the latches and bars when connected may be operated in a plurality of said doors to lock and unlock them, and one of said latches may be operated in one position of said cam shaft to lock and unlock an individual door and may be disconnected from a bar to lock a door when the said bar is in its unlocking position.

8. In a gang locking mechanism for a pluralityof jail doors, each of said doors having a locking member, a latch engaging said member to lock said door, a locking bar separably connected with said latch to lock and unlock it, and adapted to engage said locking member to lock said door, gang power means intermittently connected with said locking bar to operate the same, and means for separating said latch from said locking bar to lock a door when said gang means lis in an unlockedposition.

rality of jail doors, each of said doors having a locking member, a latch engaging said member to lock said door, a locking bar separably connected with said latch to lock and unlockit, and adapted to engage'said locking member to lock said door, gang power means intermittently connected with said bar to operate it, separate means for unlock- "in said bar and latch when said gang means is 1n one position, and Yother means for disconnecting said latch and bar and deadlock- Iing said latch whereby a door may be separated from said gang means.

10. In a gan locking mechanismv for a plurality of jai doors, each of said doors aving a locking member, a latch engaging said member to lock said door, a bar operatively connected with said latch to lock and unlock said door, a ratchet bar connected with said door having backwardly pointing lock said door, a dog in connection with said teeth, ,gang power means intermittently con- `H. L. Flscmzn,

F. Gf BRADBUBY.

nected with said locking bar to lock and unlock said door, a dog in connection with said 9. In a gang locking mechanism for a plu- 

